Refrigerator box



` small -to pass through,` a "store, door, `suchA Patented FebY 8, 1927.Y

i www Stews' l islam 4Parmi @me y TIMOTHY ivr. coiinir ANDyGonnoiiifw'." ANDERSON, or Yn'isooKnYN, NEW Yorin.`

nnritiennaron Box. f

Appiication fue@ February sf, 1326. se'riai No; 85,808. f

The object of this invention yis to provide a refrigerator box suitablefor meat dealers and `others who require refrigeiiating space Y greaterthan can be containedin a box which will lpass through Van ordinarydoor, and which can beshipped inknock-down form with each of Vthe,separatel parts f sufficiently Y parts being assembled and'heldvtogether by means Vwhich will vpermit of repeated separation,'shipment'and reassembling without injury, the walls havinggood'insulating properties and the joints being sufficiently tightto'prevent air circulation therethrough which will appreciably imparethe refrig-V eration. n

ln 4the accompanying sheet of drawings which forms a .part of thisdescription Figure 1 isa horizontal section on the linev I-I o-f Fig. 2through a refrigerator box which embodies this-invention. l

Fig. 2 is an elevation of the same with the front4 wall broken away.

Fig. 3 is a horizontalsection to a larger scale showing separated themeeting edges of two sections of a side wall and in dotted line onemoved into its closed relation 'with the other.

consists of inner sheathing 10 and outer Fig. 4 isVv a horizontalsection showing similarly the meeting edges of two side walls at acorner. v Y Fig. 5 is a vertical section showing similarly the meetingedges between a side wall and the bottomrwall. p

Each of the walls or sections of side walls v sheathing 11, suitablyseven-eightli inch tongued and Vgroo-ved spruce, between which is sheetcork board 12 which is three to lsix inches in thickness according tothe insulation desired. This is applied with hot asphalt andinsulationpaper on both sides next to the sheathing, or any othervinsulating material may be used.` Around the edges of the vertical lsidewalls and secthe framework are y set wholly within the edges of both theinner and outer sheathing. constituting the roof or ceiling andfloor ofSurrounding the top and bottom 'walls theboX is a mitered frame ofmilledI spruce studs 15,7tne edges being rabbeted to receive Y' theedges ofthe sheathing. The rabbet on the inner sideis deeperl th'anthethickness of the sheathing 'so' that l the vframe will project beyondthe 'inner sheathing 'ande vlock behind' the innerV sheathing o'lfthevertical 'Y walls :and holdv them' in r placeat the top Y at thevertical corners. l i

and bottomf independently of the lagscrewsr .'70 If the refrigerator boxis'offsuch sizejthat-v a wallin oney piece is too large -topass througha `door ror 'fonconvenient handling and shipment, it is made insections'whicli arev bolted together and held by carriage bolts 16, 16.VVherethe nuts of the carriage boltscome the cork insulation and theoutside studding is. cut away sufficiently for the insertion and settingup of the nuts. Covers 17, 17 close thesey openings. i

It is necessary for the economical use of ice or other refrigeratingmeans that there should be `no perceptible lleakage of air at* the sixor more joints where the sections are brought together and as the sprucestuds in the framework may be warped so that they cannot be drawn snuglytogether Valong their entire lengths tomake a suiiiciently close jointit is lnecessary to compensate for such irregularities and warping asare usual by interposing strips of felt v 18, 18 and drawing the partstogether withconsiderable force between vwhich theV felt strips areVplaced. Since the packing lies in grooves'between inner and outersheath-` ing which prevents 1t from vspreadingv side#` wise it is`necessary to use a packing such j as felt wliichwill compress inrvolumeinstead of a packing which merely4 distorts under pressure withoutchanging mate-y It has been found desir`` able to use one-half 'inch'strips between rially in volume.

sections of a side and the samethickness at corners Vwhere two verticalsides meet,

and by tightening on the carriagebolts vorV lag screws compress thesestrips on an average to a thicknessuof one-quarterk ofV an inch. Forpacking between the top or bot-Y toni framework and the horizontal.frameworklme'mbers of the verticalsides oneinch felt is used and willbe compressed aboutV rio one-third by the weightl ofthe .sides 'andtopWithout the userof screws, but screws may ybeused if needed in addition.

The usual tray 20 is set in the boxfor Van lice-bunker or for supportingrefrigeratingcoils. As'the'verticallsi'des are held togetherby lagscrews at the Corners the top is not essential for Vthis purpose, and

if mechanical refrigeration isto be 'used the coils are moreconveniently installed before the top. isputon; c v

Asics-boxes areus-ually constructed about one-fourth` of therefrigeration which is provided is used inV cooling the contents whichis to be cooled andthree-fourths is chargeablev to losses fromVleakagethrough thecywalls and from :changes lin air -which take lplaceVWhen entering :to take out or Y replacestoclir.V j This loss is `muchincreased* Y Y in the ,easeof/a sectional box unless adequate means ashere detailed l:is used to prevent of inflow.

V2 Y. Y Y Y '71,616,441

It will be noted that the `felt packing is soplaeed that it is Whollyconcealed by the sheathing both inside and out and inacces-V sible toinice or other vermin.

What We claim, is- Y Y A sectional refrigerator box comprising separableYvertical side Walls each of which consists of' innervand outersheathing With interposed non-conducting material and a`V ,frameworkbreaking joint with the edges of the sheathing the framework at the topsand bottoms of the vertical' side Walls being set Wholly-Within theedges 'of the'sheathing7 bottom and top L.Walls .separable'fnfrom 1 theside Wal-ls eachofwhi'oh 4consists of inner 1 and outer sheathing withinterposed nonecond-ueting material anda surrounding framework Whichproj eets beyondtlie inner sheathing vand `locks behind the .edges `ofthe inner. sheathing of .the vvertical:sideV Walls, ya strip ofeompressible'felt'lbetween each ofthe pairs of meeting.:framework edges,and meanszfor tightlyholdin'gthe sid-es in assembled'relation'.v

TIMOTHY M. GoNDLT. F GORDON W. ANDnRsoN.

